Grain separator



A. J. s cHLUNKE GRAIN SEPARATOR 2 sheets-sheetv 1 Flledrsept. 2

` il mmllll lll Mar. 27, 1923.

A. J.- SCHL-LINKE GRAIN SEPARATOR 2- sheets-sheet; 2

Flled sept, 2, 1921 me/Moz Patented Mar. Z7, 1923.

iran STAT/Esl ANNA lSCHLUNKE, F FARGO, NORTH IDAKOTA.y

Fries,

Guam snrnnnron.

" Application mea september 2, 1921. i seriaiimfieneasl To all what/t t may concertar Be it known that ANNA J. SCHLUNKE, a

citizen of the United States of America, re-

siding at largo, in the county of Cass `and State of North Dakota, has invented a new andfuseful Grain Separator, of 'which the rfollowing isa specification. y

The purpose of the presentinvention is to provide a separator, particularly a screen,

riddle or sieve for separating various grains, l

particularly oats and wheat, or longer grain .and shorter grain.

ing disposed another purpose 1s to providea separator of this general character,wherein a riddle,

screen orsieve is provided having rows of diamond shaped raised protuberances and openings, disposed in rows, the openings bebetween the' raised protuber ances 1n rows openings of one row arel 1n staggered relation with those of an adjacent row, `and in y, staggered relation yto the protuberances, `and the protuberances of one row of protuberances, so that ,the long grain will be guided past the openings. i

lt will be noted that theprotuberances are diamond shaped, and owing to theirstag-k gered relation, they cause to be Vformed di-` agonal intersecting channels, openings` are located in staggered relation,

thereby guiding the long grain past the kinds may be separated, it being obvious that to accomplish this, it willbe only .necessary to resort to variations in the screen or sieve.

Furthermore it isobvious that the combination of two or more of the screens, sievcs or riddles may be employed` to effectively separate long and short seed or grain, in fact the device may be used for separating all kinds of grain.

While the design and construction at present illustrated and set forth are deemed preferable, it is obvious that as a result of a reduction of the invention to a more practical forni for commercial purposes, the invention may be susceptible of changes, and

'in one direction, while the'k wherein the l the right to these changes is claimed, provided they are comprehended 'within the scopeof what is claimed.`

The invention coniprises further features andc'ornbination of parts, as will be hereinafter set forth, shown in the drawings and claimed;

l In the drawings :-y t

Figure l` is a' vertical longitudinal sec-` tional view through` a separator constructed in accordance Iwith the invention, showing the riddle or-sieve in position;

Figure 2 isfa sectional view online 2*-,2 of-flfigure l, showingfthe sieve, screen or riddle in plan View;` l 1 Figure S5 is a sectional Aview lon line `3--3 of Figure 2; and i Figure 4i is an enlarged detail perspective view of a portion vof the riddle, screen yor sieve. M y y,

`Referring to the drawings,`1 designates thev separator in its entirety, broadly showing a yconstruction generally used, and provided at one end thereof ywith a' hopper 2. ln the outlet inouthof this hopper is a revoluble feed roll`3, towhich any suitable power inay be operatively connected for turning the feed. The feed is in the nature of arec'tangular strip, preferably provided with extending corners.l At the outlet Inouth offther hopper 2 isV arranged a directing spout 4l having an inneroutlet 5 directed'inward of the separator and being disposed a con-l siderable distanceabove a pan 6. lnfthe 4separator is `arranged a. fanfcasing having a revoluble fan 8 therein,lthe vcasing being provided with an outlet spout 4that is disposed at a downward angle and which is arranged over thepan 6. The spout indicated the nurneral 9.

` Below thv pan 6 is anangularly arranged ieve,v riddle or screen 10, and to lthey rear of the sieve or riddle is an angularly disposedv delector plate 11.

The deflector plate 11 is arranged at an outward angle, while the riddle or sieve l() is arranged at a downward angle. The deflector 1l is positioned only a slight distance fro-In the pan 6, and as the wheat or other grain is fed from the hopper and is delivered on the pan 6 through the spout 5, the blast of air from the fan 8 throughthe spout 9 will bring the light foreign matter,

such as king head, etc., over the pan into contact with the inner deflector 11, and from t 'protuberances thence out of the separator, the wheat grain being delivered from: the pan;onto` the sieveor riddle Il0'.

The riddle, sieve or screen l0 is constructed of any suitable materialfpreferably sheet metal of the required thickness and size, and

is provided with an upstanding flange l2` at one end, and formed throughout its area is a plurality of protuberances 13. These are `preferably diamond shaped,A though` they may be otherwise formed, andare' constructed by pressing or punching them upwardly from the material. Theprotuberances havefbeveled side walls 1.4,f'a11d` owingy to the protuberances being staggered, the ybeveled or inclined vwalls are in alignment, thereby providing diagonal intersecting channels l5, whichact to guide `v`the grain in intersecting diagonal directions. The riddle, ysieve or screen is provided with a plurality of rowsof openings 16whichfare in staggered relation, and are formed in the channels l5, so that when the grain is guided in diagonal intersecting directions it will be directed toward the openings through which the smaller grain will pass, while the largervgrain will continue on its passage through the channels in diagonal kintersecting directions. Obviously the openings of one row are alternately arranged withtheprotuberances in the same row and.

in staggered relation with the protuberances oi an adjacent row, yas wellas in staggered relationl to the openings of an adjacent row. Itis obvious that the openings and the protuberances may be arranged in various positions, and increase or decrease in size, as the case may be, or as found convenient, ,for separating `various grain. Furances defining, intersecting channels the side walls of v said protuberances converging in a direction opposite to that in which the grain travels to deflect the grain in dili'erent directions and: thereby cause its promiscuous v movement through the several channels, the riddlefurther being formed with a plurality of. openings disposedinithe bottoms of the` channels.

2. A- riddle for grain separators formed on its top surface with a plurality of protuberances delining intersecting channels, the side walls oi said pro-tuberances converging in a direction -opposite tothat in which theY graintravels to deflect the grain in vditl'erentdirections and therebycause its promiscuous movement through the several channels, ythe riddle being further formed with a plurality of openings formed in the bottoms of the channels tersection thereof.

3. Al riddle for the purpose indicated comprising a plate having a plurality of prolat the points of intuberances formed on its top face, said protuberances being polygonal in plan and arranged to provide a plurality of intersecting channels, the corners of said protuberances being disposed to engage the grain precipitatedonsaid riddle and direct it promiscuously through the several channels, openings being formed in the bottoms of the channels opposite the corners of said protuberances.

4L. They combinationwith a grain separator having a feed plate, .of a sieve or riddle disposed below and spaced from said plate,

said sieve or riddle comprising-a body having, a plurality of rows of'protuberances, the protuberances of'one row being in staggered relation4 with those of an adjacent row and being diamond shape and having bevelled'walls, which are in diagonal alignment, thereby causingv to be formed diagonal intersecting, channels, said body having a plurality of rows oicpenings formed in the bottoms of the channels, toward which Lthe vgrain is guided by the walls-of the protuberances.

ln witness whereof,.in the presence of two witnesses, the inventors signature'is hereunto affixed.- i

ANNA J; SCHLUNKE.. VWitnesses l A'. R. BERGnsEN, H. E.' BEHRENS. 

